Rbrace: stmt.End(),
			}
			n.Else = block
		case *ast.BlockStmt:
			stmt.Lbrace = pos
		default:
			panic("unexpected node type in if")
		}
		ast.Walk(f, n.Else)
		return nil
	case *ast.SelectStmt:
		// Don't annotate an empty select - creates a syntax error.
		if n.Body == nil || len(n.Body.List) == 0 {
			return nil
		}
	case *ast.SwitchStmt:
		// Don't annotate an empty switch - creates a syntax error.

				}
				v.used = true // avoid usage error when checking entire function
			}
			if !used {
				check.softErrorf(lhs, UnusedVar, "%s declared and not used", lhs.Name)
			}
		}

	case *ast.SelectStmt:
		inner |= breakOk

		check.multipleDefaults(s.Body.List)

		for _, s := range s.Body.List {
			clause, _ := s.(*ast.CommClause)
			if clause == nil {
				continue // error reported before
			}

		check.simpleStmt(s.Init)

		if g, _ := s.Tag.(*syntax.TypeSwitchGuard); g != nil {
			check.typeSwitchStmt(inner|inTypeSwitch, s, g)
		} else {
			check.switchStmt(inner, s)
		}

	case *syntax.SelectStmt:
		inner |= breakOk

		check.multipleSelectDefaults(s.Body)

		for i, clause := range s.Body {
			if clause == nil {
				continue // error reported before
			}